Question

[EDIT]Whoops there was a mistake in the code, and now all the responses to the question seem bizzare, but basically the for loop used to be, for(i=0; i<15; i++). I also edited to make the question more clear.[/EDIT]

I am trying to make a for loop, that checks a 16 element array, so it loops from 0 to 15. I then use the i variable later, however sometimes i == 16, which causes problems by being out of bounds.

I have a solution but it doesnt seem elegant, which makes me think I am missing something. I’ve tried while loops, but I can never get any loop to go from 0 to 15, and never end at a value greater than 15.

Is there any way to make a loop go and check all 16 elements of the array, while never being greater than 15 at the end of the loop?

int i;

for(i=0; i<16; i++)
{
    someClass.someMethod(i);

    if(someClass.Test())
    {
        break;
    }
}



if (i == 16)
{
    i = 15;
}

Answer 1

I suggest using some other variable other than i after your loop is finished. The criteria of using a for loop instead of a while loop is that you know beforehand exactly how many times a for loop will execute. If you already know this, just set some other variable to the ending value of your loop and use it instead of giving i a dual purpose.

int j = 15;

for(int i=0; i <= j; i++)
{
    someClass.array[i];
}

// continue on using j, which value hasn't changed